WebA, B, and E are constants determined experimentally [41,47]. Table 2 gives a sampling of the many experimental values for the parameters in the Cunningham slip correction … WebMar 6, 2024 · The Cunningham slip correction factor allows predicting the drag force on a particle moving a fluid with Knudsen number between the continuum regime and free …
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Webin which the slip correction is given by: where E is the coefficient of external (or sliding) friction and q/R << 1. If Eq. (3) is expanded in a Taylor series and higher order terms … WebIncluded in Equation 1 is the Cunningham slip factor, which should be used with particles that have a diameter less than about 1.5 µm, as the deposition velocity is affected by ‘slip’ at the surface of the particle. The Cunningham slip factor is calculated as follows: When particles are larger than about 75µm, Equation 1 will overestimate the bishops auto body oakhurst
Aerosol Measurements of the Fine and Ultrafine Particle …
WebThe Cunningham slip correction factor allows predicting the drag force on a particle moving a fluid with Knudsen number between the continuum regime and free molecular … WebFrom an optical point of view, we have to consider the volume equivalent diameter D ve of the particles, we must therefore convert the size distribution in Figure 1 from the following relationship: (4) D v e = D m C (D v e) χ C (D m) (4) with C(D ve) the Cunningham slip factor of volume equivalent diameter. Webc,a = Cunningham slip factor corresponding to the AED ∝ = Aerodynamic shape factor The Cunningham slip factor is related to the potential for particle impact with the mean free path of air molecules. Above the sub-micron size range, all particles impact with air molecules and the ratio of both Cunningham slip factors can be ignored. dark shadows cast 1966 1971